Taxicab operators also expressed their support of the proposal at the event.

"As a cab driver, making a living has become really hard," said Aamar Kahn, a wheelchair taxi driver and member of the leadership council of the Western Washington Taxicab Operators Association. "All we are asking for is a level playing field and that can't happen until drivers have a right to speak up. We want every member of our City Council to support that."

One driver, Kimberly Mustafa, said she had been recently deactivated by Lyft after helping to organize the day's event.

"Last week they sent me an email saying that I was a platinum driver," she said. "Monday I attended a meeting at the Teamsters, and Tuesday I got an email saying I was deactivated."

Indiscriminate deactivation, a flawed rating system, and low pay are a few of the issues that drivers for on demand transportation companies like Uber and Lyft have raised.

After the rally, a delegation of drivers delivered a petition to the Mayor's office with the signatures of hundreds of drivers and community supporters calling on the City to pass the proposal.